1. What is Traefik primarily used for?
a) Database management
b) Reverse proxy and load balancing
c) Content management
d) Authentication
Answer: b) Reverse proxy and load balancing
2. Which programming language is Traefik primarily written in?
a) Java
b) Python
c) Go
d) Ruby
Answer: c) Go
3. Traefik is often used for container orchestration platforms like:
a) Kubernetes
b) Apache Tomcat
c) Nginx
d) PHP
Answer: a) Kubernetes
4. What is the main benefit of Traefik's dynamic configuration?
a) It reduces configuration complexity
b) It requires less memory
c) It has better performance
d) It supports more programming languages
Answer: a) It reduces configuration complexity
5. Which of the following data sources can Traefik use for dynamic configuration?
a) YAML files
b) JSON files
c) Docker labels
d) All of the above
Answer: d) All of the above
6. What is Let's Encrypt, and how does Traefik integrate with it?
a) A social media platform; Traefik does not integrate with it
b) A certificate authority that provides free SSL/TLS certificates; Traefik can automatically obtain and renew certificates from Let's Encrypt
c) A cloud storage service; Traefik can use it to store configuration files
d) A reverse proxy software; Traefik can be used in conjunction with it
Answer: b) A certificate authority that provides free SSL/TLS certificates; Traefik can automatically obtain and renew certificates from Let's Encrypt
7 Which protocol does Traefik primarily use for communication with backend services?
a) HTTP
b) FTP
c) SMTP
d) UDP
Answer: a) HTTP
8. In Traefik, what is a middleware?
a) A type of server
b) A component that processes HTTP requests and responses
c) A database management tool
d) A programming language
Answer: b) A component that processes HTTP requests and responses
9. Which load balancing method is not supported by Traefik?
a) Round Robin
b) Least Connections
c) IP Hash
d) Static Balancing
Answer: d) Static Balancing
10. What does Traefik's dashboard provide?
a) Real-time traffic monitoring
b) Video streaming
c) Database management
d) Social media integration
Answer: a) Real-time traffic monitoring
11. Which configuration format is commonly used in Traefik?
a) XML
b) JSON
c) YAML
d) HTML
Answer: c) YAML
12. What is the purpose of Traefik's entryPoints in its configuration?
a) To specify the server's physical location
b) To define the network interfaces and ports for incoming traffic
c) To list the available middleware options
d) To configure the load balancing algorithms
Answer: b) To define the network interfaces and ports for incoming traffic
13. Which of the following providers is commonly used to dynamically configure routing in Traefik?
a) AWS
b) Facebook
c) Docker
d) WhatsApp
Answer: c) Docker
14. Which TLS (SSL) encryption modes does Traefik support?
a) Only TLS 1.0
b) Only TLS 1.2
c) TLS 1.0 and TLS 1.2
d) TLS 1.2 and TLS 1.3
Answer: d) TLS 1.2 and TLS 1.3
15. What is a Let's Encrypt ACME challenge, and why is it important for Traefik?
a) It's a trivia quiz; Traefik uses it to test the user's knowledge
b) It's a challenge-response mechanism used to prove domain ownership; Traefik uses it to obtain SSL certificates
c) It's a secure login process; Traefik uses it for authentication
d) It's a load testing tool; Traefik uses it to measure server performance
Answer: b) It's a challenge-response mechanism used to prove domain ownership; Traefik uses it to obtain SSL certificates
16. In Traefik, what is a "frontend"?
a) The part of a website that is visible to the user
b) The area of a data center where the servers are stored
c) A component that routes incoming requests to the appropriate backend
d) A type of middleware
Answer: c) A component that routes incoming requests to the appropriate backend
17. What does Traefik's "sticky sessions" feature provide?
a) An adhesive for securing hardware components
b) The ability to keep a user's requests directed to the same backend server during their session
c) The ability to automatically upgrade server hardware
d) A load balancing algorithm
Answer: b) The ability to keep a user's requests directed to the same backend server during their session
18. Which authentication methods does Traefik support for securing access to the dashboard and APIs?
a) Basic Authentication and JWT
b) OAuth2 and SAML
c) Only Basic Authentication
d) None; Traefik does not support authentication
Answer: a) Basic Authentication and JWT
19. What is Traefik's Let's Encrypt staging environment used for?
a) To deploy test websites
b) To simulate production certificate issuance without rate limits
c) To store backup configurations
d) To test load balancing
Answer: b) To simulate production certificate issuance without rate limits
20. In a Kubernetes environment, how can Traefik discover services and routes automatically?
a) By using DNS service discovery
b) By manually specifying each service and route
c) By using a dedicated Kubernetes discovery plugin
d) By sending discovery requests to the Traefik team
Answer: a) By using DNS service discovery
21. Which command is used to start Traefik with a specific configuration file?
a) start-traefik
b) traefik start
c) traefik --config-file=myconfig.yml
d) run-myconfig
Answer: c) traefik --config-file=myconfig.yml
22. How can you define a "healthcheck" for backend services in Traefik?
a) By writing a healthcheck script in Python
b) By adding a "healthcheck" key in the service configuration
c) By setting the "health" parameter in the middleware
d) Traefik does not support healthchecks
Answer: b) By adding a "healthcheck" key in the service configuration
23. What is the purpose of the Traefik Pilot service?
a) To control air traffic
b) To manage and monitor Traefik instances in a distributed environment
c) To provide social media integration
d) To analyze log data
Answer: b) To manage and monitor Traefik instances in a distributed environment
24. In Traefik, what is a "front middle"?
a) A type of frontend
b) A middleware that processes requests before they reach the frontend
c) A component for managing load balancing
d) A separate instance of Traefik
Answer: b) A middleware that processes requests before they reach the frontend
25. Which of the following authentication mechanisms is NOT natively supported by Traefik?
a) OAuth2
b) LDAP
c) SAML
d) JWT
Answer: b) LDAP
26. What does the Traefik "Host" rule do when routing requests?
a) Filters requests based on the user's hostname
b) Specifies the server's physical location
c) Manages server hardware components
d) Routes requests to the appropriate backend based on the request method
Answer: a) Filters requests based on the user's hostname
27. Which of the following is NOT a Traefik deployment mode?
a) Standalone
b) Swarm
c) Marathon
d) Static
Answer: d) Static
28. How does Traefik handle WebSocket connections by default?
a) It drops WebSocket connections
b) It automatically upgrades WebSocket connections
c) It restricts WebSocket usage to a specific domain
d) It requires manual configuration to enable WebSocket support
Answer: b) It automatically upgrades WebSocket connections
29. In Traefik, what is a "docker network"?
a) A network of shipping containers
b) A virtual network that allows containers to communicate with each other
c) A type of middleware
d) A load balancing algorithm
Answer: b) A virtual network that allows containers to communicate with each other
30. What is the purpose of Traefik's "retry" middleware?
a) To retry failed requests automatically
b) To simulate request retries for load testing
c) To configure the number of retries for health checks
d) To create backup configurations
Answer: a) To retry failed requests automatically
31. What is Traefik's "frontends" and "backends" terminology similar to in a traditional web server context?
a) IP addresses
b) URLs and webpages
c) Database tables and records
d) Virtual hosts and application servers
Answer: d) Virtual hosts and application servers
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